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Finding the Fourth Proportional to 448,989.45, 673,459.55 and 271,448.79

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Solution

The fourth proportional to 448,989.45, 673,459.55 and 271,448.79 is: 407,158.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,989.45 : 673,459.55 = 271,448.79 : x
  2. Step 2: Convert to fraction form
    448,989.45/673,459.55 = 271,448.79/x
  3. Step 3: Cross multiply
    448,989.45x = 673,459.55 × 271,448.79
  4. Step 4: Simplify right side
    448,989.45x = 182,809,777,096.66
  5. Step 5: Solve for x
    x = 182,809,777,096.66/448,989.45
  6. Step 6: Final answer
    x = 407,158.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.